#57B9CE#57B9CE

#57B9CE is a light, moderate cyan. Relative luminance 0.412; OKLCH L 73.5% C 0.096 H 213.8°. Best body text is #000000 at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#57B9CE
RGB	rgb(87, 185, 206)
HSL	hsl(191, 55%, 57%)
HSV	hsv(191, 58%, 81%)
CMYK	cmyk(57.8%, 10.2%, 0%, 19.2%)
CIE-LAB	lab(70.30, -22.65, -19.28)
CIE-LCH	lch(70.30, 29.74, 220.41°)
OKLab	oklab(73.51% -0.0799 -0.0534)
OKLCH	oklch(73.51% 0.096 213.8)
XYZ	xyz(32.4155, 41.1772, 64.6203)
Luminance	0.4118 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57B9CE #CE6C57

analogous

#57CEA7 #57B9CE #577ECE

triadic

#57B9CE #CE57B9 #B9CE57

tetradic

#57B9CE #A757CE #CE6C57 #7ECE57

square

#57B9CE #A757CE #CE6C57 #7ECE57

split-complementary

#57B9CE #CE577E #CEA757

monochromatic

#277484 #349DB3 #57B9CE #86CDDC #B6E0EA

Accessibility & contrast

On white

2.27

#57B9CE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.24

#57B9CE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57B9CE

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57B9CE	#FFFFFF	#000000	##000000
##57B9CE	1.00	2.27	9.24	9.24
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.24	21.00	1.00	1.00
##000000	9.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B4CF

Deuteranopia (green-blind)

#98A6CE

Tritanopia (blue-blind)

#00C1BF

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #57b9ce;
/* rgb */ color: rgb(87, 185, 206);
/* oklch */ color: oklch(73.5% 0.096 213.8);

Tailwind

colors: {
  custom: {
    50: '#91cedd',
    500: '#57b9ce',
    950: '#000000',
  },
}

SCSS

$custom: #57b9ce;
$custom-light: #91cedd;
$custom-dark: #000000;

JSON

{
  "hex": "#57b9ce",
  "rgb": {
    "r": 87,
    "g": 185,
    "b": 206
  },
  "hsl": {
    "h": 190.588,
    "s": 54.839,
    "l": 57.451
  },
  "oklch": {
    "l": 0.73509,
    "c": 0.09609,
    "h": 213.8
  },
  "luminance": 0.4118
}

Semantic roles & 50–950 ramp

primary

#57B9CE

secondary

#D8B1A8

accent

#644ADE

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1315

muted

#7E8283

Preview Lab

Preview with #57B9CE

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →